This is a demonstration of magnetic retractor lifting a liver.
Credit: Joe Howell, Vanderbilt University
Closed-Loop Control of Local Magnetic Actuation for Robotic Surgical Instruments. DOI:10.1109/TRO.2014.2382851
Jacopo Buzzi and Elena De Momi from the Polytechnic of Milan and Vanderbilt doctoral student Marco Beccani also contributed to the research, which was funded by National Science Foundation grant 1239355.